Cranksets

Shimano's R9100 series crankset achieves the ultimate in optimal power transfer. It does this through its broader Hollowtech II arm and a more reinforced outer chainring on its unique asymmetrical four-arm spider construction. The R9100 cranks set the highest standards for stiffness and lightness. With the first integrated power meter, you can expect extremely accurate data. The FC-R9100-P is Shimano’s first power meter, as well as Shimano’s first crank-integrated power meter on the market. It retains its unique asymmetrical four-arm spider construction, but with a ‘brain’ mounted on the inside. On its crank arm are the strain gauges. Working perfectly in sync with each other, you can use the extremely precise power data to improve your performance.
- Accurate real time data
- Compatible with 3rd party displays
- Bluetooth / ANT technology
- Hollowtech II construction
- Hollowglide chain
- 11-speed compatible
- Waterproof in all conditions
- ±2% accuracy of strain gage measured power
- Integrated rechargeable battery
- Simple zero reset with switch on transmitter
- Average weight (170mm, w/o BB): 691 grams (53-39T)/679 grams (50-34T)

When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DFour measures power in the heart of the bicycle — the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DFour represents the state of the art in power meter technology. Every innovation in Quarq’s next-generation DZero platform is channeled into the DFour Power Meter Crankset. It embodies 10 years of Quarq technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets.
- The DFour power meter is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 drivetrains.
- Must be paired with a compatible SRAM bottom bracket.
- ELSA RS power meter owners can upgrade using the DFour Power Meter Spider.
- Free firmware upgrades with the Qalvin app.
- Compatible with BB30 bottom bracket.
- BB30 versions ship with the spacers and wave washer required for BB386EVO installation.

When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DZero measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero represents the state of the art in power meter technology
As Quarq’s next generation of power meters, the DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and, for the carbon version, compatibility with BB386EVO bottom brackets.
- 10K temperature compensation: Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions
- Built to last: Features an IPX7 waterproof rating
- Material: CNC Machined Aluminum Spider, Exogram Carbon Crank Arms
- Accuracy: 1.5%
- Bolt Circle Diameter: 130 BCD, 110 BCD
- Q-Factor: 145mm
- Wireless Technology: ANT+, Bluetooth low energy technology
- Battery: CR2032, 200 hours of riding time
- Weight: 578/559 grams (130/110 BCD)
- Head Unit Compability: ANT+ and Bluetooth low energy technology compatible head units (available separately)
- Compatibility: Traditional 5 bolt chainrings from most manufacturers. Hidden (HB) and Non-hidden Bolt (NHB) patterns. 10-speed, 11-speed, 1X and 2X. *Not compatible with Campagnolo chainrings

The crankset is the heart of your bicycle and where you’ll find the SRAM RED Quarq power meter. The sole job of the crankset is to convert the effort from both legs to forward motion. It is the perfect place to measure power. This power meter works for every discipline: Road, triathlon, time trial, and cyclo-cross. The chainrings are replaceable should your bike, discipline, or ability change.
- A direct force power meter that measures total power output from both legs with +/-1.5% accuracy
- Works for every discipline: Road, triathlon, time trial, and cyclo-cross
- No compromises on materials, shifting, wheels, or pedal choice
- Proven by pro teams and athletes throughout the world – Cobbled Classics, Giro d’Italia, Tour de France, Vuelta a España, World Championships
- Number 1 at the Ironman World Championship for the last three years
- Uses a hidden bolt to mount the chainrings – compatible SRAM chainrings ensure the derailment pin lines up behind the crank arm
- 10K – programmed with over 10,000 data points to eliminate temperature effects on power measurement
- AxCad – A multi-axis accelerometer switches the power meter on and measures cadence, simplifying installation and operation
- Breakthrough Materials – Exogram hollow carbon fiber crank arms – the lightest, strongest crank arms SRAM makes – minimize weight and maximize speed [ELSA RS, ELSA R and SRAM RED]
- Easy to use (and reuse) – LED indicator and visible ANT+ ID
- The replaceable CR2032 battery never leaves you without power
- Manual and automatic zeroing make it truly set and forget
- Built to Last – IPX7 waterproof rating, 2-year warranty, free firmware updates, and acclaimed international support
- Moves with you from bike to bike
- With Quarq's free Qalvin app – available for Windows, Mac, iOS and Android – you can set the zero offset, check battery voltage, run diagnostics, and perform firmware updates for free
Arm Material: Carbon arms, Machined alloy spider
Weight: 778 grams (GXP 172.5mm 53x39 BB not included)
* Chainrings and BB sold separately

The road steepens, but instead of slowing down, you push harder on the pedals and fly up the hill as all of your power turns into speed thanks to your Campagnolo Super Record Ultra-Torque Crankset. It sports a unique, integrated titanium spindle design that joins the two sides of the crankset together via a toothed Hirth joint in the center. And for ultra-smooth pedaling, the crankset comes with ceramic bottom-bracket bearings that fit into outboard cups (sold separately). The aesthetically arresting design provides incredible stiffness, while Campagnolo's unified BCD (145/112mm) allows for all 3 chainring standards. Plus, the Super Record chainrings sport special pins and plating for fast, silent shifts and long life.
- Chainrings included: Yes
- Drivetrain speeds: 11
- Number of chainrings: Double
- Spindle interface type: Campagnolo Ultra-Torque

When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the DFour measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DFour Spider represents the state of the art in power meter technology
- The DFour Spider is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 chainrings.
- Bluetooth low energy technology and ANT+ wireless data transfer.
- 10K Temperature Compensation.
- Battery - CR2032, 200-hour battery life, change without tools.
- OmniCal - swap chainrings without affecting accuracy.
- IPX7 waterproof rating.
- Accuracy within 1.5%

When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DZero measures power in the heart of the bicycle — the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero represents the state-of-the-art in power meter technology
As Quarq’s next generation of power meters, the DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app.
- 10K temperature compensation: Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions
- Built to last: Features an IPX7 waterproof rating
- Bluetooth low energy technology and ANT+ wireless data transfer
- Battery: CR2032, 200-hour battery life, change without tools
- OmniCal: swap chainrings without affecting accuracy
- 2-year warranty
- IPX7 waterproof rating
- Accuracy within 1.5%
- Bottom Bracket Compatibility: BB30
- Forged aluminum models do not work with BBright or BB386EVO bottom brackets

When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DZero measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero represents the state of the art in power meter technology
As Quarq’s next generation of power meters, the DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app.
- 10K temperature compensation: Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions
- Built to last: Features an IPX7 waterproof rating
- Bluetooth low energy technology and ANT+ wireless data transfer
- Battery: CR2032, 200-hour battery life, change without tools
- OmniCal: swap chainrings without affecting accuracy.
- 2-year warranty
- IPX7 waterproof rating
- Accuracy within 1.5%
- Bottom Bracket Compatibility: SRAM GXP
- Forged aluminum models do not work with BBright or BB386EVO bottom brackets

When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the DZero measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero Spider represents the state of the art in power meter technology
Meet the Quarq DZero Power Meter Spider—the DZero in spider form. Ready to pair with any Quarq Prime Power ready cranksets.
- Bluetooth low energy technology and ANT+ wireless data transfer
- 10K Temperature Compensation
- Battery: CR2032, 200-hour battery life, change without tools
- OmniCal: swap chainrings without affecting accuracy
- 2-year warranty
- IPX7 waterproof rating
- Accuracy within 1.5%

Harness the power of your tandem team with FSA's SL-K Tandem Crankset. This rear crankset features compression molded, unidirectional carbon crankarms pushing a wide-ranging 52/39/30 gear range. A 42-tooth left-hand-drive FSA chainring is included and a proprietary spacer system lets you fine tune the chainline.

When SRAM began developing XX, they were looking to create the lightest, most precise and technically advanced components possible, and boy have they delivered! The XX Crankset boasts carbon/aluminum arms to keep the weight incredibly low and boost stiffness to stratospheric levels. The chainrings are no small feat of engineering, either. They’re painstakingly cut from solid aluminum blocks to eliminate power-robbing flex and they’re exquisitely ramped and pinned to provide lightning-quick, impressively crisp gear changes. What’s more, the XX is available in two widths so you can get the perfect fit and maximize efficiency.

Power to the people! Add the Pioneer Power meter to your existing Shimano crank. Pioneer's crankset-based power meters are simply some of the best power-monitoring systems on the planet, and the Upgrade Kit gives you the chance to add it to your existing crankset. At the heart of the Pioneer Power Meter System are two streamlined strain gauge monitors that can detect the slightest tangent and radial force direction as power is applied to the crank arms. This proprietary system detects the amount and the direction of force at 12 different points in each pedaling stroke for each leg, and allows you to fine tune your pedaling to find race-winning form. The Pioneer Power Meter Installation Kit comes with everything you need to package and send your existing Shimano crank to Pioneer for professional installation and calibration.
- Compatible with Shimano Dura-Ace 9000 or Ultegra 6800 (Right Side Cranks Only)
- Compatible Crank-arm Lengths: 165, 167.5, 170, 172.5, 175, 177.5, 180mm
- Fully Integrated Strain Gauge for force measurement
- Easy connectivity with ANT+ compatible Cycle Computers
- HDPower Metrics when connected to Pioneer Cycle Computers
- Lightweight Sensor Only 40 grams

Designed specifically for use with H11 groupsets. Full Carbon crank arms and spider are hollow for maximum stiffness and minimal weight. Utilizes USB ceramic ball bearings. Light weight hard anodized alloy chainrings and alloy chainring bolts. Utilizes Campagnolo's Ultra-Torque crank system.
- Ultra-Torque axles couple together in the middle of the BB shell via a Hirth Joint that self centers the crank. This results in a very light weight and stiff system that transfers power to the pedals without power loss
- Features Campagnolo X.P.S.S. (eXtreme Performance Shifting System) featuring geometrically optimized chainring teeth. Optimized when mated to a full Campagnolo drivetrain
- USB ceramic bearings increase smoothness and decrease rolling resistance, weight and the need for maintenance. USB bearings are 50% smoother than standard Campagnolo bearings
- Ultra-Torque system have both drive and non-drive side bearings pre-installed
- Double standardized bolt circle diameter allows for use of standard, mid-compact and compact chainrings
- Required for use with H11 Ergopower shift levers, the crank spider is shifted outward to adjust for 135 and 142mm hub spacing while maintaining the Q-Factor
- Requires use of Ultra-Torque bottom bracket cups

Pioneer's Shimano Ultegra 6800 Power Meter is a revolutionary power meter that attaches stealthily to the left crankarm. The Ultegra 6800 left crank arm meter truly brings power to the people, and gives every rider power-based (also called watt-based) training performance, allowing you to fine-tune your pedaling to find race-winning form without breaking the bank. With advanced technology accurate to +/- 2%, ANT+ transmitting, active temperature compensation, and a mere 22 grams of weight, the Pioneer power meter is perfect for any cyclist. Additionally, installation is fast, simple, and clean with zero wires, magnets, or zip ties.

Campagnolo is all about drivetrain evolution, and their Chorus Crankset proves it. The full-carbon cranks and 4-arm spider feature a unified bolt pattern that allows for all three chainring standards. This design incorporates an 8-bolt pattern with a spider arm that not only holds the chainring in place by way of the bolt, but also supports the chainring to increase system rigidity. The crank arms and spider are hollow for maximum stiffness and minimal weight. The integrated Ultra-Torque spindle joins the crankset together via a toothed Hirth joint in the center.
- Chainring BCD: Campagnolo 146 Asymmetric, Campagnolo 112 Asymmetric

True competitors are always looking for a performance advantage—a relentless pursuit of equipment that is lighter, stiffer and stronger. To create the best drivetrain possible, SRAM started with a completely reengineered crankset design. SRAM's XX1 Eagle crankset is the lightest, stiffest and strongest on the market. A special hollow internal architecture, combined with SRAM's proprietary CARBON TUNED lay-up, allows us to build a lightweight and ultra-energy-efficient crankset perfectly suited for the high-wattage output and smooth style of cross country riding and racing. Teamed up with their Eagle direct mount chainring, and as an integral part of the Eagle drivetrain, the XX1 Eagle crankset puts more focused power into every ride.

- The carbon crank arms are completely hollow with all unnecessary material being removed from the centre core - no internal aluminum spine
- Industry standard 30mm spindle with Cinch spline interface. The spindle is CNC machined from a newly commercialized aluminum 'super alloy' that is 20% stronger than 7050 alloy (the alloy commonly used in this application)
- Removable spider offers the ability to convert between existing chainring standards while remaining flexible to future developments
- The interchangeable spindle option of the Cinch system allows you to use the same crankset with 68/73mm and 83mm frames

Harness the power of your tandem team with FSA's SL-K MegaExo Tandem Crankset. This front crankset features compression molded, unidirectional carbon crankarms, a 42-tooth, left-hand-drive FSA chainring, and a proprietary spacer system to fine tune the chainline.